Answer:
Most attenuated vaccines are viral, some are bacterial in nature. Examples include the viral diseases yellow fever, measles, mumps, and rubella, and the bacterial disease typhoid
Explanation:
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Answer:
Option (B).
Explanation:
Liver is an important organ that regulates the metabolic pathway of the body and helps in the process of digestion. The improper functioning of liver can cause yellowish skin, edema and high blood pressure.
Mrs F medical condition clearly describes the improper functioning of liver. The liver helps in the formation of bile juice. Bile is a soapy compound that helps in the emulsification of lipids.
Thus, the correct answer is option (B).
Answer:
The testes are two oval-shaped male reproductive glands that produce sperm and the hormone testosterone.
The researchers will use mice instead of opossums or humans to determine whether the cells of the ear bones originated from the same embryonic cells as the cells that form the jaw in other vertebrates because in this type of experiment, organisms that are ideal are the ones that have a short life span, easy to be researched on and easy to mantain.
It will be very tedious and demanding to use opossums and humans in this type of practical experiment because,it is against the culture and norms guilding human living and existence to use humans as model organisms,opossums as well are very bad model organisms because unlike the mice,opossums are long lived and it will be very difficult to raise and maintain an opossum in a laboratory.
Humans and mice are both mammals just that human is a higher mammal but they share similar features in terms of pattern of development,though there is a clear difference during their early development,so because of the common ancestry shared by the mice and humans,the result of the experiment on the mice with share a close similarity with the pattern that is expected in humans.
